doubler



(No Model.) 3 sheetssheet 1.

J. W. H. DOUBLBR.

LOGK- No. 316,132; .PatentedApr Z1, 1885.

N. PETERS. Plmm-umogmphm. washmgmn. D c

3 sheets-sheer. a.

(No Model.)

J. W. H. DOUBLER.

LOCK.

No. 316,132.l Patented Apr. 21, 1885.

, 'UNITED STATES PATENT OFFICE.

JOHN W. H. D'OUBLER, OF ROCKFORD, ASSIGNOR OF ONE-HALF PORTER, OF CHICAGO, ILLINOIS.

LOCK.

SPECIFICATION forming part of Letters Patent No. 316,132, dated April 21, 1885.

Application filed June 26, 1884.

T0 all whom it may concern,.-

Beit known that I, JOHN W. H. DOUBLER, a citizen of the United States, residing in the city of Rockford, in the county of Winnebago and State of Illinois, have invented a new and useful Lock, ot' which the following is a specification.

This invention relates to door-locks; andj its object is to produce a combined lock and.' latch embodying most or all of the features. 'found in locks fitted with independent latch and lock bolts; and it consists ina slide-g spindle knob to operate the latch independ-v cnt of the spindle-knobs; in a system ofinterchangeable tnniblers in connection with the latch-bolt; in a key constructed with inter-j changeable leaves in connection with the interchangeable tumblers, and in a spring-actuated tly in connection with the latch-bolt, all` of which will be hereinafter more fully de-y scribed.

In the accompanying drawings, Figure l is an isometrical representation of 'a lock ern- Fig. 2 is a side view Fig. 3 is also a bodying my invention. with side of casing removed.

side view with side of casing and some of lthe internal parts omitted. Fig. 4 is a longitudinal transverse section on dotted linear on Fig. l. Fig. 5 is an isometrical representation of the key. Fig. 6 is an isometrical representation of the latch-bolt. Fig. 7 is an isometrical representation of the tumblers, and Fig. '8 is an isometrical representation of a slide-knob and its slotted plate.

In the figures, A represents the side walls; B, the edge walls, and O the front plate of a lock, all being substantially such as are in common use.

At D is represented a combined latch and lock bolt slotted at its rear end t-o receive the spindle-hub a between the side arms, I), forming the slot. The spindle-hub a is supported to oscillate in vbearings in the side plates, A, of the case. The spindle-hub is fitted with camf formed arms c,to engage the stud-arms d, rising from the ends of the side arms, b, in such a manner that when the hub is made to oscillate in its bearings in either direction the bolt will be retracted within the case, substantially as in locks now in use. This latch and look bolt D is slotted lengthwise, as at e, to receive (No model.)

a stud-guide, e', which rises from the side plate of the lock-case, and serves to guide the endwise movements ofthe bolt, and also receives the screw e,employed to fix the sides of the case in place. The latch and lock bolt is provided with a depending arm, E, fitted at its rear end with a depending arm, h. to engage the key employed to carry the bolt rearward for the purpose of unlocking.

At h is represented a springactuated fly having a pivotal connection with the depending arm E of the bolt in such position therein that vwhen the bolt is in its latch position. as shown in Fig. l, and in the dotted lines in Fig.

"2 the key employed to operate the lock will engage the under face of its free end and lift it to its upper dotted-line position, as shown in Fig. 3, when the key in its rearward movement will pass from under the free end ofthe iiy and permit it to drop by the action of the spring h to its lower dotted-line position. In the reverse forward movement of the key it will engage the free end of the iiy and carry the bolt to its locking position, as shown in the solid lines in Fig. 3, and dotted lines in Fig. 2. This lock and latch bolt D is also fitted with a detent-stud, i, projecting from its side in position to engage the tumblers of the locking mechanism.

At 7c and Z are represented tumblers in like pairs having a pivotal connection with the `TO MINER case at m, from which point they extend rearward over the depending arm E of the bolt. These tumblers k and l are tted at their central portion with a slotted opening, n, to rel ceive the detent-stud t' in such a manner as to permit an endwise sliding movement of the bolt for the purposes of a latch.

At o are represented detents projecting inA ward from opposite sides of the slotted opening n in the tumblers and opposite each other, leaving an opening, o, between their inward projecting ends sutlicient to permit the detentstud i to pass between them from the said opening n to the chamber-opening o', which receives the detent-stud i and serves to lock the bolt in its projected position. Y The reverse movement of the bolt to carry the detent-stud i from `the chamber o through the opening o to the opening n in the tumbler will place the bolt in position to be operated IOO as a latch-bolt.

in pairs, 7c and Z, differing only in the depth of their lower portions which engage the key employed to operate the lock. These tumblers k andZ are made interchangeable and capable of being placed in a position opposite to that shown at Fig. 7, in which the smaller t'umblers, Z, would be placed in the center between the larger ones, 7c.

At F is represented the shaft of a key iitted with a handle end, p, in the usual manner. The end portion, p3, of the key-shaft is fitted in journal-form grooved lengthwise to receive the key-blades, which are fitted to the journal. The key-blades are produced in like pairs, consisting of like bolt-shooting blades s and the two sets of tumbler-lifting blades k and Z, of 'which the small like blades, 7c',

are designed to engage the large tumblers,

k, and the larger like key-blades, Z, are designed to engage the small like tumblers, Z. These several like pairs of key-blades are fitted to the grooved journal portion p of the key-shaft, on which they are made interchangeable to adjust them to the position of the tumblers, and when adjusted are held in position by means of a clamping-screw, s', inserted in the end of the key-shaft, which is bored and internally screw-threaded to receive it. By this construction it will be seen that when the tumblers are adjusted in pairs and the keyblades adjusted in pairs to engage the tumblers the key-.may be used from either side of the lock, and when the tumblers are adj usted alternatelylarge and small and the key-blades adjusted to engage the tumblers in such an adj ustment the key can only be used on one side of the lock. The forward beveled end portion, H. of the lock-bolt has a screw-connection with the main portion of the bol't,and is made reversible, for the purpose of adapting the lock to right and left hand doors.

At I is represented a spring fixed within I the case in position to engage the rear end of the bolt, and is employed to shoot the latchbolt forward to engage the strike-plate of the door.

At K is represented a spring, `one end of which is fixed in a slotted stud, L, which rises within the case from the side plate thereof, and the free end of the spring engages the upper edge of the tumblers to hold them in contact with the stud-detent in a manner to be lifted therefrom by the action of the key.

At N is represented a lever-detent having a pivotal connection with the case in such position that its inner free angle-arm, P, lis capable of a lateral swinging movement to place it The tumblers are produced l in front of the cam-arms of the spindle-hub,

to prevent retracting the latch-bolt by means of the knobs on the projecting ends of the spindle. This lever-detent N is also capable of adjustment to its dotted-line position, as shown in Fig. 4, disengaged from the cams of the spindle-hub, to permit the latch-bolt to be retracted by means of the knobs on the spindle ends. The forward free end, R, of the lever-detent extends through a transverse opening, R', formed in the front plate of the case in a manner to permit the adjustment of the lever to permit or prevent operating thelatchbolt by means of the spindle-knobs as the lever-detent is thrown into or out of connection with the cams of the spindle-hub.

At T is represented aslide-knob with aspindle, t, attached, fitted to enter the slot in the slide-plate T, to be lfixed on the inside of the door, in which the lock is pla-ced. This spindle t is fitted on-opposite sides with enlargements t', to pass through the slot in the slideplate to engage its inner surface when the enlargements are turned transversely to the slot, to prevent its withdrawal from the plate and permit it to slide lengthwise therein. The spindle t is fitted to enter an opening, u, formed in the latch-bolt in such a manner that force applied to the knob will operate to retract the latch-bolt, causing the spindle to slide in the slotted plate.

I claim'as my invention- 1. The combination, with `a combined lock and latch-bolt, of an arm and fly connected therewith and arranged within the path of the key, the one being rigid and the other yielding, as and for the purposes set forth.

2. The combination, with alock having tumblers made relatively interchangeable in corresponding pairs, of a key consisting of ashaft journaled and grooved to receive key-blades interchangeable in pairs correspondingly to the tumblers of the lock and itted to the journaled portion of the shaft, and a clamping-screw to hold the blades in place, as and for the purposes set forth.

3. The combination, with the combined lock and latchy bolt and its case having a longitudinal slot, of aspindle having shoulders and a knob and a plate longitudinally slotted and fitted on the spindle between its shoulders and knob, substantially as and for the purpose described.

JOHN W. H. DOUBLER.

Witnesses:

A. O. BEHEL, JACOB BEHEL.

IOO 

